1a64: Difference between revisions

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[[Image:1a64.png|left|200px]]


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==ENGINEERING A MISFOLDED FORM OF RAT CD2==
The line below this paragraph, containing "STRUCTURE_1a64", creates the "Structure Box" on the page.
<StructureSection load='1a64' size='340' side='right'caption='[[1a64]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1a64]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A64 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1A64 FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1a64 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a64 OCA], [https://pdbe.org/1a64 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1a64 RCSB], [https://www.ebi.ac.uk/pdbsum/1a64 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1a64 ProSAT]</span></td></tr>
{{STRUCTURE_1a64|  PDB=1a64  |  SCENE=  }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/CD2_RAT CD2_RAT] CD2 interacts with lymphocyte function-associated antigen (LFA-3) and CD48/BCM1 to mediate adhesion between T-cells and other cell types. CD2 is implicated in the triggering of T-cells, the cytoplasmic domain is implicated in the signaling function.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a6/1a64_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1a64 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The amino-terminal domain of CD2 has the remarkable ability to fold in two ways: either as a monomer or as an intertwined, metastable dimer. Here we show that it is possible to differentially stabilize either fold by engineering the CD2 sequence, mimicking random mutagenesis events that could occur during molecular evolution. Crystal structures of a hinge-deletion mutant, which is stable as an intertwined dimer, reveal domain rotations that enable the protein to further assemble to a tetramer. These results demonstrate that a variety of folds can be adopted by a single polypeptide sequence, and provide guidance for the design of proteins capable of further assembly.


===ENGINEERING A MISFOLDED FORM OF RAT CD2===
Engineering an intertwined form of CD2 for stability and assembly.,Murray AJ, Head JG, Barker JJ, Brady RL Nat Struct Biol. 1998 Sep;5(9):778-82. PMID:9731771<ref>PMID:9731771</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1a64" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_9731771}}, adds the Publication Abstract to the page
*[[CD2|CD2]]
(as it appears on PubMed at http://www.pubmed.gov), where 9731771 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_9731771}}
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</StructureSection>
==About this Structure==
[[Category: Large Structures]]
[[1a64]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A64 OCA].
 
==Reference==
<ref group="xtra">PMID:009731771</ref><ref group="xtra">PMID:012270716</ref><references group="xtra"/>
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
[[Category: Barker, J J.]]
[[Category: Barker JJ]]
[[Category: Brady, R L.]]
[[Category: Brady RL]]
[[Category: Head, J G.]]
[[Category: Head JG]]
[[Category: Murray, A J.]]
[[Category: Murray AJ]]
[[Category: Domain swapping]]
[[Category: Hinge loop]]
[[Category: Oligomer evolution]]

Latest revision as of 13:47, 2 August 2023

ENGINEERING A MISFOLDED FORM OF RAT CD2ENGINEERING A MISFOLDED FORM OF RAT CD2

Structural highlights

1a64 is a 2 chain structure with sequence from Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CD2_RAT CD2 interacts with lymphocyte function-associated antigen (LFA-3) and CD48/BCM1 to mediate adhesion between T-cells and other cell types. CD2 is implicated in the triggering of T-cells, the cytoplasmic domain is implicated in the signaling function.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The amino-terminal domain of CD2 has the remarkable ability to fold in two ways: either as a monomer or as an intertwined, metastable dimer. Here we show that it is possible to differentially stabilize either fold by engineering the CD2 sequence, mimicking random mutagenesis events that could occur during molecular evolution. Crystal structures of a hinge-deletion mutant, which is stable as an intertwined dimer, reveal domain rotations that enable the protein to further assemble to a tetramer. These results demonstrate that a variety of folds can be adopted by a single polypeptide sequence, and provide guidance for the design of proteins capable of further assembly.

Engineering an intertwined form of CD2 for stability and assembly.,Murray AJ, Head JG, Barker JJ, Brady RL Nat Struct Biol. 1998 Sep;5(9):778-82. PMID:9731771[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Murray AJ, Head JG, Barker JJ, Brady RL. Engineering an intertwined form of CD2 for stability and assembly. Nat Struct Biol. 1998 Sep;5(9):778-82. PMID:9731771 doi:10.1038/1816

1a64, resolution 2.00Å

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